Update to my original post for those interested.
Here is the link to the required software for flightplan transfer to the GNS530W/430W
https://buy.garmin.com/shop/store/do...D=194&pID=8052.
It uses the Terrain Data card slot and accepts flightplans (.fpl files) from software such as Jeppesen Flightstar. You need to purchase the Flightplan Transfer kit from Garmin.